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PNcoupling.f90
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PNcoupling.f90
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subroutine PNcoupling
use parameters,only:pi
use globalvar,only:ix,jx,kx,U_h,U_m,flag_bnd,beta,flag_b_stg,dtout,&
flag_mhd,flag_mpi,my_rank,flag_pip,gm,beta,tend,&
x,y,z,dx,dy,dz,n_fraction,ndim,debug_direction,margin
use scheme_rot,only:pv2cq_mhd,pv2cq_hd
use model_rot, only:set_coordinate,setcq
implicit none
double precision :: ro_h(1:ix,1:jx,1:kx),ro_m(1:ix,1:jx,1:kx)
double precision :: vx_h(1:ix,1:jx,1:kx),vx_m(1:ix,1:jx,1:kx)
double precision :: vy_h(1:ix,1:jx,1:kx),vy_m(1:ix,1:jx,1:kx)
double precision :: vz_h(1:ix,1:jx,1:kx),vz_m(1:ix,1:jx,1:kx)
double precision :: P_h (1:ix,1:jx,1:kx),P_m (1:ix,1:jx,1:kx)
double precision :: B_x (1:ix,1:jx,1:kx)
double precision :: B_y (1:ix,1:jx,1:kx)
double precision :: B_z (1:ix,1:jx,1:kx)
double precision ::mask(ix,jx,kx)
double precision ::v_para(ix,jx,kx),v_perp(ix,jx,kx)
double precision ::b_para(ix,jx,kx),b_perp(ix,jx,kx),b_tang(ix,jx,kx)
double precision ::v_b_para(ix,jx,kx),b_b_para(ix,jx,kx)
double precision ::v_theta(ix,jx,kx),v_phi(ix,jx,kx)
double precision ::b_theta(ix,jx,kx),b_phi(ix,jx,kx)
double precision f_n,f_p,f_p_n,f_p_p,start(3),end(3)
double precision thick,b0,P_tot,Bz0,v0
double precision theta_p,phi_p,tmp,T_n,T_p
integer i,j,k,orix,oriy,oriz
!set ionization fraction-----------------
if(flag_pip.eq.0) then
f_n=1.0d0
f_p=1.0d0
f_p_n=1.0d0
f_p_p=1.0d0
else
f_n=n_fraction
f_p=1.0d0-n_fraction
f_p_n=f_n/(f_n+2.0d0*f_p)
f_p_p=2.0d0*f_p/(f_n+2.0d0*f_p)
endif
!----------------------------------------
!Set coordinate (uniform grid)--------------------------
!!set lower and upper coordinate
start(1)=-0.0d0 ;end(1)=2.0d0
start(2)=0.0d0 ;end(2)=10.0d0
start(3)=-1.0d0 ;end(3)=1.0d0
call set_coordinate(start,end)
!---------------------------------------
!!default boundary condition----------------------
if (flag_bnd(1) .eq.-1) flag_bnd(1)=10
if (flag_bnd(2) .eq.-1) flag_bnd(2)=10
if (flag_bnd(3) .eq.-1) flag_bnd(3)=10
if (flag_bnd(4) .eq.-1) flag_bnd(4)=10
if (flag_bnd(5) .eq.-1) flag_bnd(5)=10
if (flag_bnd(6) .eq.-1) flag_bnd(6)=10
!-------------------------------------------------
!!!========================================================
tmp=0.0d0
!set debug direction----------------------------------------------
if(debug_direction.eq.1) then
mask=spread(spread(x,2,jx),3,kx)
phi_p=0.0d0
theta_p=pi/2.0d0
flag_bnd(1)=1
flag_bnd(2)=1
flag_bnd(1:2)=1
flag_bnd(3)=3
else if(debug_direction.eq.2) then
mask=spread(spread(y,1,ix),3,kx)
phi_p=pi/2.0d0
theta_p=pi/2.0d0
flag_bnd(1)=3
flag_bnd(3)=3
flag_bnd(4)=2
else if(debug_direction.eq.3) then
mask=spread(spread(z,1,jx),1,ix)
phi_p=0.0d0
theta_p=0.0d0
flag_bnd(5)=2
flag_bnd(6)=2
else if(debug_direction.eq.4) then
do k=1,kx;do j=1,jx; do i=1,ix
mask(i,j,k)=pi*(x(i)+y(j))
enddo;enddo;enddo
phi_p=pi/4.0d0
theta_p=pi/2.0d0
tmp=pi/2.0
else if(debug_direction.eq.5) then
do k=1,kx;do j=1,jx; do i=1,ix
mask(i,j,k)=(x(i)+z(k))
enddo;enddo;enddo
phi_p=0.0d0
theta_p=pi/4.0d0
else if(debug_direction.eq.6) then
do k=1,kx;do j=1,jx; do i=1,ix
mask(i,j,k)=(y(j)+z(k))
enddo;enddo;enddo
phi_p=pi/2.0d0
theta_p=pi/4.0d0
else if(debug_direction.eq.7) then
do k=1,kx;do j=1,jx; do i=1,ix
mask(i,j,k)=(x(i)+y(j)+z(k))
enddo;enddo;enddo
phi_p=pi/4.0d0
theta_p=pi/4.0d0
endif
!----------------------------------------------------------------
v0=0.0d0
ro_h=1.0d0*f_n
ro_m=1.0d0*f_p
vx_h=v0*0.5d0
vy_h=0.0d0
vz_h=0.0d0
vx_m=-v0*0.5d0
vy_m=0.0d0
vz_m=0.0d0
! p_h=1.0d0*f_p_n/gm
! p_m=1.0d0*f_p_p/gm
T_n=2.0d0
T_p=0.5d0
P_h=ro_h*T_n/gm
P_m=2.0d0*ro_m*T_p/gm
B_x=0.0d0
B_y=0.0d0
B_z=0.0d0
!!!========================================================
!convert PV2cq and set that value to global variable 'U_h' and/or 'U_m'
call setcq(ro_m,vx_m,vy_m,vz_m,p_m,B_x,B_y,B_z, &
ro_h,vx_h,vy_h,vz_h,p_h)
!---------------------------------------------------------------------
!set default output period and time duration--------------------------
if(tend.lt.0.0) then
tend=5.0d0
dtout=tend/20.0
if(flag_mpi.eq.0 .or.my_rank.eq.0) print *,"TEND",dtout,tend
endif
!---------------------------------------------------------------------
end subroutine PNcoupling